Type-writing machine



0. PETERMANN.

TYPE WRITING MACHINE.

APPLICATIONIFILED DEC. 30, 1915.

Patented Aug.

WIT/V8858:

A TTOH/VE VS OTTO PETERMANN, OF GROTON, NEW YORK, ASSIGNOR TO CORONATYPEWRITER COMPANY, INC., A CORPORATION OF NEW YORK.

I TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 5, 191%,

To all whom it may concern:

Be it known that I, Or'ro PETERMANN, a citizen of the United States, anda resident of Groton, county of Tompkins, and State of New York, haveinvented certain new and useful Improvements in Type-Writing Machines,of which the following is a full, clear, and exact description.

This invention relates more particularly to the keyboards of typewritingmachines.

The primary object of the invention is to i provide a rest key locatedat the side of the at all times.

machine for the typist to rest his little finger while manipulating thekeys in order that the hand may be properly positioned The key isparticularly a'dvantageous while operating the machine under what isknown as the touch system and permits the typist to operate the 'keysreadily and in a correct manner.

Another object of the invention is to provide a simple and eiiicientrest key for the hand of the operator which forms a part of thekeyboard.

A further object of the invention is to provide a key of the characterdescribed which is simple in construction and which may be readilymanufactured.

A still further object of the invention is to provide a'key which may bereadily attached to or detached from the. machine frame or other part ofthe machine. A

Another object of the invention is to provide an additional rigid keyadapted to be attached to the keyboard of a small typewriting machine inwhich the keyboard is smaller than the keyboard of the standard ofiicetypewriting machines, the additional rigid key serving to fill out theabbreviated keyboard of the small typewriting machine, so that therewill be a sufiicient number of keys in one row or group to enable theoperator to properly position his hands over the larly described withreference to the ac companying drawings, which form a part of thisspecification, and will then be pointed out in the claims at the end ofthe descriptlon.

In the drawings, Figure l is a fragmem 7 detached.

Fig. 3 is a vertical section through a part of the key showing the keyattached to a part of'the machine frame; and

Fig. 4 is a detail plan of the key.

As shown the invention is applied to a Corona typewriter as theinvention is designed especially for a small portable machine of thischaracter, but it will be understood that the invention may be used inconnection with writing machines of various kinds.

The frame 10 of the machine has side bars 11 connected together by anintegral bar 12 at the front thereof and by a transversely extendingplate or bar 13 between which plate 13 and bar 12 and the sides 11 islocated the keyboard 14. The keyboard may comprise a'number of levers 15each having a key 16. These keys may be arranged in groups'or'banks andform a part of the usual standard or universal keyboard. As shown thereare three groups or banks of keys, as in the Corona typewriter and inthis particular type of machine the shift keys are located at the lefthand side of the machine, there being a shift key for the I upper caseand a shift for figures and other characters thereof, although thisparticular form of keyboard may be changed according to whether a singlecase shift or a double case shift is employed.

In line with the middle row of keys and attached to the side 11 of theframe is a rest key 17. This rest key has a plate-like body 18 at theupper portion of which is an integral outwardly and upwardly projectingpart 19. At the upper portion of the part 19 is a substantially circularand integral plate-like part 20 to which the finger part 2] of the keymay be attached by means of inwardly extending fingers as is usual forholding the metal key rim to a key-operated lever, The body 18 at eachside of the part 19 is provided with curved clips or hook-shaped parts22 which are adapted to be passed over the upper edge v23 of the side 11of the machine frame or other support. A leg or part 24 extendsdownwardly from the body 18 and terminates in a hook-shaped portion 25adapted to form a {yielding clip to fit under the lower edge of the side11 of the machine frame and with the clips 22 serves to detachably holdthe key to said side of the frame. A brace or wardly from the b0 y 18and at an angle to the leg 24 and serves as a means to assist inbracingand steadying the key on the frame, and as a locating means to get therest key lined up with the row of key-levers, the lower end of the bracebeing made to engage with the side of the front foot bracket as shown indotted lines in Fig. l.

The brace 26 also prevents the rest key from moving toward the front ofthe machine.

In thespecial type of machine in connection with which the key isparticularly adapted for use only one rest key is employed for thereason that the shift ke or one of the other keys at the opposite si eof the machine might be employed for the left hand of the operator,though it will be understood that where the keyboard is of this or anyother form of construction a similar 'Wardly extending part, and a keylikey adapted for the left hand side of the machine may be used. 4

It will be evident that by a key of the character described the typistshand is properly positioned for operation of the keys under the usualtouch system so that accuracy and speed are secured, and that the entirekey except the finger part may be made of a single piece of sheet metal.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A hand-positioning finger-rest key for a typewriting machine,comprising a stem formed with integral means for detachably holding thesame to a part of the machine, an angularly extending portion adapted toengage a fixed part of the machine to brace the key and position thesame relatively to, the keys of the keyboard, a laterally; and upefingersupporting part held to said laterally and upwardly extendingpart. 2. A hand-positioning and supporting device for a typewritingmachine, comprlsing a stem provided with integral hook portions adaptedto grip the opposite edges of a part of the machine frame for detachablysecur-' ing the device to the machine, a projecting arm held to saidstem and adapted to engage a stationary art of the machine to ositionthe device re atively to the keyboar and a key-like finger-supportingportion held to the A vice for a typewriting machine, comprising a stemformed with integral clips adapted to ;part 26 extends downdependinggrip the upper and lower edges of one of the side members 'of themachine frame, a

finger-rest portion rigidly supported on'the side of the keyboard, andmeans for deter mining the position of the disk-like (portion relativelyto the keys of the keyboar 5. A hand-positioning finger-rest key adaptedfor attachment to the frame ofa typewriting machine, comprising a bodyportion having a laterally extending yieldable part adapted to engageunder a part of the frame, an angular extending integral brace portionadapted to engage a stationary part of the machine, spaced clipsformedintegrally with the body portion and adapted to engageover a partof theframe, an integral upwardly extending portion formed with adisk-like portion arranged substantially at right angles to the bodyportion, and a finger portion secured to said disk-like portion.

6. A hand-positioning finger-rest key adapted for attachment to a partof a typewriting machine, comprising a body havlng a depending leprovided with a yieldable laterally exten ing part adapted to engageunder a part of the machine, integral hooks formed on the body atopposite sides of the depending leg and adapted to engage over a part ofthe machine, an angularly extending brace portion adapted to engage astationary part of the machine to position the key, an upwardlyextending part, and a finger part held to said upwardly extendingwriting machine, comprising a body having a depending leg provided witha yieldable laterally extending part adapted to engage under a part ofthe machine, integral hooks formed on the body at opposite sides of theleg and adapted to engage over a part 0 the machine, and a finger partsupported by the body.

In a typewriting machine, the combination of a frame, a keyboardsupported by said frame and comprising a plurality of movable-keysarranged in rows or groups, and a fixed hand-positioning fingersupporting key mounted in the keyboard in alinement with one of therowsor groups of movable keys and in the same horizontal plane with thekeys of the said group when said keys are intheir normal at-restposition, whereby the said rigid key will have a uniform position andalinement with the movable keys of the keyboard.

-9. In a typewriting" machine, the combination of a frame, a keyboardsupported by said frame and comprising a plurality of movable keysarranged in rows or groups, a fixed hand-positioning finger sup ortingkey, and means for detachably holdlng the said positioning key to thekeyboard-supporting means in alinement with one of the rows or groups ofmovable keys and in the same horizontal plane with the keys of the saidgroup when said keys are in their normal at-rest position, whereby thesaid rigid key will have a uniform position and alinement with themovable keys of the keyboard.

This speoifioation signed this twenty-second day of December, A. D.1915.

OTTO PETERMANN.

